{"id":"CVE-2023-53006","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: Fix oops due to uncleared server->smbd_conn in reconnect\n\nIn smbd_destroy(), clear the server->smbd_conn pointer after freeing the\nsmbd_connection struct that it …","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: Fix oops due to uncleared server->smbd_conn in reconnect\n\nIn smbd_destroy(), clear the server->smbd_conn pointer after freeing the\nsmbd_connection struct that it …","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 4.16, < 4.19.272","linux_kernel >= 4.20, < 5.4.231","linux_kernel >= 5.5, < 5.10.166","linux_kernel >= 5.11, < 5.15.91","linux_kernel >= 5.16, < 6.1.9","linux_kernel = 6.2"],"patched":["linux_kernel 6.1.9"],"published":"2025-03-27","updated":"2026-10-15","sourceUpdated":"2026-10-15T22:17:35.477","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-53006","references":[{"url":"https://git.kernel.org/stable/c/4b83bc6f87eedab4599b0123e572a422689444be","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5109607a4ece7cd8536172bf7549eb4dce1f3576","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/91be54849d5392050f5b847b42bd5e6221551ac8","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a9640c0b268405f2540e8203a545e930ea88bb7d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b7ab9161cf5ddc42a288edf9d1a61f3bdffe17c7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e037baee16e0b9ace7e730888fcae9cec11daff2","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.00553,"epssPercentile":0.46004,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-10-15T21:33:05.727782Z"},"ingestedAt":"2026-10-15T22:48:25.385Z","slug":"CVE-2023-53006","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ncifs: Fix oops due to uncleared server->smbd_conn in reconnect\n\nIn smbd_destroy(), clear the server->smbd_conn pointer after freeing the\nsmbd_connection struct that it points to so that reconnection doesn't get\nconfused.\n\n## Affected\n\n- `linux_kernel >= 4.16, < 4.19.272`\n- `linux_kernel >= 4.20, < 5.4.231`\n- `linux_kernel >= 5.5, < 5.10.166`\n- `linux_kernel >= 5.11, < 5.15.91`\n- `linux_kernel >= 5.16, < 6.1.9`\n- `linux_kernel = 6.2`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.1.9`","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}